Air moistener or evaporator.



PATENTED FEB. 5, 1907.

J. W. JOHNSON. AIR MOISTENER 0R EVAPORATOR.

APPLIOATION FILED NOV. 10,1905.

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Wad 7 THE NORRIS PzTE'Rs cu., wnsamcrcu, 0v 0 JOHN WEBSTER JOHNSON, OFLEAVENWORTH, KANSAS.

AIR MOISTENER 0a EVAPORATOR.

Specification of Letters Patent.

Patented Feb. 5, 1907.

Application filed November 10, 1905. Serial No. 286,684-

To all whom it may concern.-

Be it known that I, J OHN WEBSTER J OHN- soN, a citizen of the UnitedStates, residing at Leavenworth, in the county of Leavenworth and Stateof Kansas, have invented new and useful Improvements in Air Moistenersor Evaporators, of which the following is a specification.

This invention relates to air moisteners or evaporators.

The object of my invention is the provision of an air moistener orevaporator particularly adapted for use on pianos to properly moistenthe air in and around the piano-action, and thereby prevent injury tothe piano on account of the dry heat which is caused in modern houses bythe use of the ordinary heating systems and which at present is a sourceof injury to pianos.

The present invention has for its object the provision of an airmoistener or evaporator of such improved construction that having oncebeen properly filled with water turning of the device into any positionwill not cause the escape or spilling of the water and injury to thepiano, for it will be understood that pianos are frequently turned onend when being handled; and the present invention is intended forattachment to the back side of the piano-front, near the top thereof andover the action.

The invention consists of an air moistener or evaporator of improved andnovel construction and applied to the piano-case in a novel way, asfully set forth hereinafter.

In the accompanying drawings, Figure 1 is a perspective view showing thedevice attached to the back side of a piano-front, near the top thereofand over the action; Fig. 2, a detail plan view of the device; Fig. 3, alongitudinal section; Fig. 4, a section on line 3 3 of Fig. 8, and Fig.5 a section on line 4 4 of Fig. 3.

Referring first to Fig. 1, the numeral 1 designates the front part of apiano-case, to the inside of which the present invention is adapted tobe attached, over the action, by hooks 2, suitably screwed or otherwiseconnected to the front 1, thus supporting the device in horizontalposition.

The air moistener or evaporator is preferably made of sheet metal andconsiderably elongated, having a tubular body 3 closed at both ends andprovided with an elongated trough-like portion 4. Chambers 5 and 6 areformed in the ends of the body 3 by the provision of depending endflanges 7 and 8,

extending only part way across the body.

Depending side flanges 9 and 10 extend inwardly from the margins of thetrough-like part 4 and at their ends join the end flanges 7 and 8. Theseside flanges do not extend to the bottom of the body 3, nor do the endflanges 7 and 8 extend to the bottom of body 3 or crosswise thereof, sothat the chambers 5 and 6 are in water communication along the bottom ofthe body and between the body and the flanges 9 and 10. The troughlikepart 4 between said flanges is filled with a sponge or other'absorbentmaterial 11. At.

the ends of the body 3 are loops 12 and 13 to detachably receive thehooks 2. At one end of the body is a tube or nipple 14, closed by asuitable stopper or cap 15, through which the body may be properlyfilled with water.

' To fill the evaporator with water, it is re moved from the hooks 2 andheld in an upright position and water poured through t e tube 14 untilthe lowermost chamber 5 is filled. The sponge or absorbent material isthen placed in the trough-like opening and the evaporator engaged withthe hooks 2 on the piano. On account of the peculiar construction of thedevice the piano can be turned in any direction without causing thewater to spill or splash out, and the moist surface of the sponge orabsorbent material keeps the air surrounding the piano-action properlymoistened by the evaporation.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is

1. An air moistener or evaporator having a body provided with coveredends forming water-chambers, and flanges extending inwardly from saidbody at the sides and ends of an intermediate open portion.

2. An air moistener or evaporator of subst antially tubular form, havingcovered waterchambers at its ends, and provided with an elongatedtrough-like open ortion intermediate said chambers, and aving flangesextending inwardly from said body along the sides and ends of saidtrough-like portion.

3. An air nioistener or evaporator comi In testimony whereof I havesigned my prising a tubular body having at each end a name to thisspecification in the presence of device for supporting it in asubstantially two subscribing Witnesses.

horizontal position, and provided in its top JOHN l/VEBSTER JOHNSON. 5with an opening surrounded by inwardly- Witnesses:

extending depending flanges, and a filling oi SooTTIE SHEPHERD,

absorbent material in said opening. MAGGIE SoHEN.

